igiQ- Catalogue of Birds of the Americas — Cory. 343 



Piaya cayana cauccB Stone, Proc. Acad. Nat. Sci. Phila., 1908, p. 499 (Rio 

 Cauca, Colombia).* 



Piaya cayana nigricrissa CoRY, Field Mus. Nat. Hist., Om. Ser., I, 1915, p. 310, 

 part; Chapman, Bull, Am. Mus. Nat. Hist., XXXVI, 1917, p. 320 (Alto 

 Bonita; San Jose; Barbacoas; Buena Vista; Ricaurte; Puerto Valdivia; Saa 

 Antonio; Cerro Munchique; Guenque; Rio Frio; Miraflores; Salento; Sta. 

 Elena; Andes west of Honda, Colombia). 



Range : Western Ecuador and western Colombia (east to the central 

 Andes**) and northern Peru. 



3: "Western Colombia" 2; Peru (Yurimaguas i). 



*Piaya cayana boliviana Stone." Bolivian Squirrel Cuckoo. 



Piaya cayana boliviana Stone, Proc. Acad. Nat. Sci. Phila., 1908, p. 501 (Yungas, 

 Bolivia) . 



Range: Bolivia and southeastern Peru (Inca Mine and Huiro, 

 Urubamba R.). 



2 : Bolivia (Porto Velho i) ; Peru (Htdro, Urubamba R. i). 



Piaya cayana obscura Snethlage^ Snethlage's Squirrel Cuckoo. 



Piaya cayana obscura Snethlage, Journ. fur Omith., 1908, p. 21 (Bom Lugar, 

 Rio Verde, Upper Rio Funis, western Brazil); Id., Boll. Mus. Goeldi, VHI, 

 1914, p. 212 (Bom Lugar; Monte Verde, Rio Purus, Brazil); Hellmatr, 

 Nov. Zool., XVn, 1910, p. 401 (Calama, Rio Madeira, Brazil). 



Range: Upper Amazon region (Rio Punis) western Brazil. 



*Piaya cayana macroura {Gamhel). Large-tailed Squirrel Cuckoo. 

 Piaya macroura Gambel, Journ. Acad. Nat. Sci. Phila., 1849, p. 215 (Surinam= 



Paraguay; Surinam, loc. errore, See Cabanis and Heine, Mus. Hein., IV, 1867, 



p. 87; Chubb, Ibis, 1910, p. 272 (Paraguay); Dabbene, Bol. Soc. Physis. I, 



No. 6, 1914, p. 320 (Tucuman Salta, etc., Argentina). 

 Piaya cayana macroura Stone, Proc. Acad. Nat. Sci. Phila., 1908, p. 501; Cory, 



Field Mus. Nat. Hist., Om. Ser., I, 1915, p. 310. 

 ^[layo] c. var. guarania von Ihering, Rev. Mus. Paulista, 1904, p. 448 (Ourino, 



Estado de Parand, southern Brazil), 



• Cf. Chapman, /. c. 



^ Intergrading with C. p. columbiana in central Andes region. 



° Piaya cayana boliviana Stone: "Above walnut brown, wings and rump tinged 

 with chestnut, tail tinged with bay, both glossed with wine purple; flanks dark gray, 

 crissum slightly darker; under side of rectrices dull black with tips white; no trace of 

 a subterminal band " (Stone, I.e.). The coloration of the crissum and other characters 

 will readily distinguish this race from P. c. nigricrissa (Cabanis) and it is quite dif- 

 ferent from P. c. pallescens (Cabanis and Heine) of Brazil. I have not compared 

 it with specimens of P. c. obscura Snethlage, which is autoptically unknown to me. 



^ Piaya cayana obscura Snethlage: Described as differing from P. c. nigri- 

 crissa in its gray (instead of black) tibia, and dusky gray (instead of black) crissum, 

 and the under surface of the tail feathers entirely black. From P. c. cayana it differs 

 in the browner (less fox-red) upper parts and the dusky (not ashy gray) under tail 

 coverts. No specimens seen by me. 



